Stripping machine for use in connection with siding boards



y 1962 R. A. DAMATO ET AL 3,033,741

STRIPPING MACHINE FOR USE IN CONNECTION WITH SIDING BOARDS OriginalFiled July 25, 1956 2 SheetsSheet 1 "Hill:

u u 1| II II lllllll INVENTORS RAPHAEL A. D AMATO BY ROY E. REHM ATTO RN EYS y 8, 1962 R. A. D'AMATO ET AL 3,033,741

STRIPPING MACHINE FOR USE IN CONNECTION WITH SIDING BOARDS OriginalFiled July 25, 1956 2 Sheets-Sheet 2 FIGZ 48 48 III 5 3 I I :2- v t T 5e22 22 54 L INVENTORS RAPHAEL A. D'AMATO BY ROY E. REHM /M M MJ ATTORNEYSUnite Claims. (Cl. 156584) This invention relates to the manufacture ofbuilding materials, and more particularly to a machine for use inconnection with the forming of corneror 'bridgepieces for use withinsulated siding in the exterior finish of buildings. This applicationis a division of my application Serial No. 599,991, filed July 25, 1956,now abandoned. v

A widely accepted material for the exterior finish of residential andother buildings known as insulated siding comprises a stiff backingofasphalt impregnated fibrous or cellulosic material covered with afinish layer of asphalt mixed with very, tinely crushed rock, into thesurface of which layer is rolled a coating of slate granules. Thismaterial is commonly provided in boards of substantial size, for example14 by 43 inches approximately, and these boards are applied as anexterior finish to the side of the building, commonly with an overlapbetween the successive courses in the same manner as Wood siding orclapboards. ,At the corners of the building the ends of the boards are,as first applied, exposed, and the invention is concerned with theprovision-of cornerpieces to conceal the ends of the siding so exposed.Since the siding is frequently provided with a pattern in its exteriorsurface, for example in the form of striations in the color of the slategranules or in the form of surface indentations imitative of the grainof wood, it is important for satisfactory appearance of the finishedbuilding that the cornerpieces possess the same finish as the sidingboards which they are to complete.

The invention provides a machine for use in connection with themanufacture of such cornerpieces from a piece of the same finish layeras the siding itself, shaped to fit the space at the corner of abuilding between two siding structure shaped into the form of thedesired cornerpiece,

The invention will now be described in greater detail with reference tothe accompanying drawings in which:

'FIG. 1 is a plan view of a stripping machine according to the inventionfor stripping the finish layer from insulated siding boards; and

FIGS. 2 and 3 are sectional views taken on the lines 2--2 and 3-3 ofFIG. 2.

The stripping machine 4 of the invention comprises a pair of parallelangle members together with runners or rails 22 constituting a set ofguideways defining a horizontal channel down which pass siding boards asindicated at '24 for the stripping operation in which the plastic finishcoating is removed from the stiff backing. The boards 24 are driventhrough the machine of FIG. 1 by pusher bars 26 which are attached to anendless conveyor in the form of a chain 28 driven from a motor 36 by asprocket and chain drive as shown.

Stripping of the finish coating 3 from the backing 32 of the boards 24is accomplished by a wire 34, stretched States Patent Q ing board oftypes commonly available, the backing mem-.

ber 32 may be of the order of /2 inch thick while the finish layer 3 tobe stripped therefrom may be of the order of inch thick.

- The wire 34 is stretched across the stripping machine between a pairof fixtures generally indicated at 36 positioned to incline'the lengthof the wire 34 obliquely to the chain 28 and hence to the direction ofmotion of the boards 24. The fixtures 36 includeeach a vertical slottedmember 38 aifixed to the frame of the stripping machine 4, outboard ofthe channels 20. The fixtures further include an apertured block 40through which wire 34 is passed and a clamp 42 in which the wire may beclamped under tension. The height of the wire with respect to rails 22is adjusted by means of screws 44 which raise or lower blocks 40 withrespect to the slotted member 38.

To position properly the advancing boards 24 with respect to thestripping wire 34, the machine isprovided with a hold-downroller 46positioned lengthwise of the machine at the location of wire 34. Roller46 is located with the tangent to its lower surface above rails 22 by adistance substantially equal to or slightly less than the completethickness of the boards 24. Roller 46 is supported in brackets 48 whichinclude resilient elements permitting the roller to be forced upward bythe boards 24, so that during passage of the boards thereunder'they areresiliently held down against rails 22.

Additional hold-down rollers 50 and 52 may be provided in advance of thestripping station, i.e. in advance of the location of wire 34, to insurethat the boards 24 will be held ilat on rails 22 during the strippingprocess.

To prepare the boards for stripping by wire 34, a starting knife 54 orcutting wheel idle or driven is provided in advance of thewire, toseparate the finish coating 3 from the backing member 32 of the board atthe corner of the board first engaged by the wire. Knife 54 is providedwith a short blade having an edge oblique to the pathof motion of theboard, the blade being fixedly positioned above rails 22 by thethickness of the backing 7 member 32. A hold-down roller 56 is arrangedimmediately in advance of knife 54. Advantageously a second startingknife 58 is provided on the opposite'side of the board channel, asindicated in FIG. 1, to make an initial severance of the upper layer ofthe siding board at the other side, thereof. The operation of thestarting knives is illustrated in FIG. 2 which also shows theconstruction of theresilient mountings 48 for the hold-down rollers.

Knife 58 prevents tearing of the finish coating 3 when the advance ofthe board 24 brings its leading edge into contact with the wire 34 atthe side of the board last engaged by the wire.

With the leading corners of the board started by knives 54 and 58, wire34 strips the finish coating 3 from the backing member 32 in the mannerillustrated in FIG. 4. Thus the finish coating from each board isremoved in an entire sheet. At room temperature this finish coating,including its adherent layer of granules 7, constitutes 'a stiff sheet,easily handled in the remaining operations involved in manufacture ofthe cornerpieces of the invention. a

While the invention has been described herein in terms of a preferredform of stripping machine, various changes may be made in the specificform of the machine as thus described without departing from theinvention itself which is-defined in the appended claims.

We claim:

1. Av machine for stripping the outer layer from a laminated sidingboard, comprising means defining achannel, means for pushing a sidingboard lengthwiseof said channel, a stripping wire extending transverselyand .maintainasiding board against the bottom of said channel j during astripping operation.

obliquely of said channel and substantially parallel to the upper layerof the siding board will .be stripped therefrom;

2. A machine according to claim 1, in which themeans for pushingasidingboard' lengthwise of said channel is an endless conveyor havingpushing'elements adapted to 'jCiXlfiI'ld'iDlO said channel and toengageasidingboard in the channel, and which includes a first knife extendinginto-said channel from oneside 'thereof,.sai d knife being locatedinadvance of the stripping wire, in the direction of movement of a siding'board through saidchannel, and

positioned above the bottom of "the channeL-a distance substantiallyequal to the distance. that the stripping wire 'is positionedabove thebottom ofthe channel, said knife being adapted to engage a forwardcorner of a siding board being pushed along said channel and to make .an

initial severance ot-the upper layer of the siding board at one edgethereof before' said siding hoard reaches said stripping-wire. i

, 3; 'A machine according'to claim 2, including a re- 4. A machineaccordingto claim 2 including asecond knife extending into said channelfrom the other side thereof and, positioned similarly to said firstknife, and a resiliently-supported roller extending transversely of saidchannel adiacen't said knivesto hold a siding board against the bottomof said' channel'at the location of said knives,

5. A machine according to claim 4 in which the cutting edges of saidknives extend obliquely to the length ofsaid channel in the direction ofmovementof asiding board lengthwise of the channel.

a References Cited in the file ofthis patent UNITED'STATES PATENTS626,813 Kruger June 13,1899 1,140,1 87 Rhoads -May 18, 1915 1,595,097Howell Aug. 10,1926 2,130,045 Tapparo Sept. 13, 1938 "2,438,156 DodgeMarr23, 1948 2 ,440,994 Wilde May'4,'1948 2,554,150 Moore L May 22,19512,569,831 Ryall Oct. 2, 1951 2,647,547 7 Gilfprd 'Aug, 4, 1953 2,660,217Lawson Nov. 24, 1953

1. A MACHINE FOR STRIPPING THE OUTER LAYER FROM A LAMINATED SIDINGBOARD, COMPRISING MEANS DEFINING A CHANNEL, MEANS FOR PUSHING A SIDINGBOARD LENGTHWISE OF SAID CHANNEL, A STRIPPING WIRE EXTENDINGTRANSVERSELY AND OBLIQUELY OF SAID CHANNEL AND SUBSTANTIALLY PARALLEL TOTHE BOTTOM THEREOF, SAID STRIPPING WIRE BEING SPACED ABOVE THE BOTTOM OFSAID CHANNEL AND IN THE PATH OF MOVEMENT OF A SIDING BOARD BEING PUSHEDALONG SAID CHANNEL, WHEREBY WHEN SAID SIDING BOARD IS PUSHED PAST SAIDWIRE, THE UPPER LAYER OF THE SIDING BOARD WILL BE STRIPPED THEREFROM.